Google Workspace handles email and collaboration, Salesforce is used for CRM and sales tracking, Slack and Microsoft Teams facilitate team communication, Zoom is utilized for video meetings, Shopify is used for eCommerce, HubSpot is employed for marketing and customer management, and QuickBooks Online is used for accounting. These are some of the common real-world SaaS platforms that businesses use today. These tools have become popular because they are scalable, cloud-based, and require less in-house infrastructure.